diff --git a/gen-bn b/gen-bn
new file mode 160000
index 0000000..9bfc2e6
--- /dev/null
+++ b/gen-bn
@@ -0,0 +1 @@
+Subproject commit 9bfc2e612fbe755c0b9cb81ebe768f640dff8f5c
diff --git a/main.py b/main.py
index 5c380f9..6af6293 100644
--- a/main.py
+++ b/main.py
@@ -7,6 +7,14 @@ def main():
     print("Hello")
     print("Now Hello")
 
+def likelihood_weighting():
+    print("Hello")
+
+def gibbs_sampling():
+    print("Hello")
+
+def metropolis_hastings():
+    print("Hello")
 
 if __name__ == '__main__':
     main()
\ No newline at end of file